Match list – I with list – II

List – I	List-II
	(i) Hell – volhard – Zelinsky reaction
b) $R-\stackrel{\stackrel{O}{\left|\right|}}{C}-C{H}_3+NaOX\to$	(ii) Gatter mann koch reaction
c) $R-C{H}_{2}OH+RCOOH\underset{H_{2}S{O}_4}{\overset{Conc}{\to }}$	(iii) Haloform reaction
d) $R-C{H}_{2}COOH\underset{ii)H_{2}O}{\overset{i)X_2/\mathrm{Re}dP}{\to }}$	(iv) Esterification

Choose the correct anser from the options given below

	a	b	c	d
1	i	iv	iii	ii
2	ii	iii	iv	i
3	iv	i	ii	iii
4	iii	ii	i	iv

• Gatterman Koch reaction: When benzene or its derivative is treated with carbon monoxide and hydrogen chloride in the presence of anhydrous aluminum chloride or cuprous chloride, it forms benzaldehyde or substituted benzaldehyde. This means that (a) belongs to (ii).
• In Haloform reaction, aldehydes or ketones having at least one methyl group attached to carbonyl carbon atom when reacted with NaOX (X=Cl, Br or I), its forms salt of carboxylic acid along with H₃C-X. This means that (b) belongs to (iii).
• In Esterification, alcohol and carboxylic acid reacts in acidic medium and forms ester along with water. General representation of the esterification reaction is shown below: 

            $RCOOH + R\text{'}OH\stackrel{Conc. H_{2}S{O}_4}{\to }RCOOR\text{'} + H_{2}O$

            This means that (c) belongs to (iv).

• In Hell-Volhard-Zelinsky reaction,  carboxylic acids having an α-hydrogen are halogenated at the α-position on treatment with chlorine or bromine in the presence of small amount of red phosphorus to give α-halo carboxylic acids. This means that (d) belongs to (i).